A recent US study has added credence to the theory that eating trends leading to obesity, and at the other end of the spectrum, thinness, may often be socially contagious.

Study author and professor at Harvard University, Dr Nicholas Christakis, said, ‘This reinforces the idea that because people are interconnected, their health is interconnected. It takes seriously the embedded-ness of people within social networks and gives new meaning to the concept of public health’.

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